Instruction/ maintenance manual of the product 3750 Cisco Systems
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Table of Contents Configuring Inter−VLAN Routing with Catalyst 3750 Series Switches in a Stacked Configuration .........1 Document ID: 45002 ............................................................................................................
Configuring Inter−VLAN Routing with Catalyst 3750 Series Switches in a Stacked Configuration Document ID: 45002 Introduction Before You Begin Conventions Prerequisites Components Used Background The.
Components Used The information in this document is based on the software and hardware versions below. Two Catalyst 3750G−24T switches running 12.1(14)EA1 EMI Software Release stacked together • Catalyst 2950G−48 running 12.1(12c)EA1 EI Software Release • Catalyst 2948G running 6.
Generating and distribution of the Distributed Cisco Express Forwarding (dCEF) database to the different stack members • The MAC address of the master is used as source MAC of routed packets • Pac.
The above diagram shows a small sample network with the stack of Catalyst 3750s providing inter−VLAN routing between the various segments. The following are the three user defined VLANs: VLAN 2 − .
VLAN 1 is not used for management. All ports in Catalyst switches default to VLAN 1, and any devices connected to non−configured ports will be in VLAN 1. This may cause potential issues for the management of switches, as explained above. • A Layer 3 (L3) (routed) port is used to connect to the default gateway port.
description To 2950 switchport trunk encapsulation dot1q ! !−−− Dot1q trunking (with negotiation) is configured on the L2 switch. !−−− If DTP is not supported on the far switch, issue the !−−− switchport mode trunk command !−−− to force the switch port to trunk mode.
interface GigabitEthernet1/0/22 ! interface GigabitEthernet1/0/23 ! interface GigabitEthernet1/0/24 ! interface GigabitEthernet2/0/1 description To 2948G switchport trunk encapsulation dot1q ! !−−− Output suppressed.
Note: Since the 3750 is configured as a VLAN Trunk Protocol (VTP) server, the VTP configuration is not displayed by the switch. This is standard behavior. The commands below are used on this switch to create a VTP server with the three user−defined VLANs from global configuration mode.
switchport mode access no ip address spanning−tree portfast ! !−−− Output suppressed. interface GigabitEthernet0/1 switchport trunk encapsulation dot1q no ip address ! interface GigabitEtherne.
begin ! # ***** NON−DEFAULT CONFIGURATION ***** ! ! #time: Fri Jun 30 1995, 05:04:47 ! #version 6.3(10) ! ! #system web interface version(s) ! #test ! #system set system name Cat2948G ! #frame distribution method set port channel all distribution mac both ! #vtp !−−− VTP domain is configured to be that same as the 3550 (VTP server).
Verify This section provides information you can use to confirm your configuration is working properly. Certain show commands are supported by the Output Interpreter Tool ( registered customers only ) , which allows you to view an analysis of show command output.
E1 − OSPF external type 1, E2 − OSPF external type 2, E − EGP i − IS−IS, L1 − IS−IS level−1, L2 − IS−IS level−2, ia − IS−IS inter area * − candidate default, U − per−user static route, o − ODR P − periodic downloaded static route Gateway of last resort is 200.
200.1.1.1 disabled disabled 2−1000 show trunk Cat2948G> (enable) show trunk * − indicates vtp domain mismatch Port Mode Encapsulation Status Native vlan −−−−−−−− −−−−−.
Updated: Mar 10, 2005 Document ID: 45002 Cisco − Configuring Inter−VLAN Routing with Catalyst 3750 Series Switches in a Stacked Configuration.
An important point after buying a device Cisco Systems 3750 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cisco Systems 3750 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cisco Systems 3750 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cisco Systems 3750 you will learn all the available features of the product, as well as information on its operation. The information that you get Cisco Systems 3750 will certainly help you make a decision on the purchase.
If you already are a holder of Cisco Systems 3750, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cisco Systems 3750.
However, one of the most important roles played by the user manual is to help in solving problems with Cisco Systems 3750. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cisco Systems 3750 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
